I haven’t seen it so can’t say either way but I’ve always wondered if this constant “Penalty to Rangers” and conspiracy nonsense sometimes plays a part, perhaps subconsciously in the backs of officials minds. They’re only human and I reckon that this is what Celtic, their supporters and cheerleaders want - to get match officials to think twice before giving Rangers a favourable decision or one against Celtic.
Ever since the 2010 referee strike - an event which was completely Celtic’s doing - Celtic have had it more or less their own way and we’ve all seen on numerous occasions that any referee giving big decisions against Celtic is then often subject to vilification, harassment sometimes even threats to them and their families so it takes a strong referee to officiate their games.